Mortar applicator for building block masonry



June 24, 1969 YUJI TOCHIORI 3,451,106

MORTAR APPLICATOR FOR BUILDING. BLOCK MASONRY Filed May 26, 1967 ATTORNEY United States Patent 3,451,106 MORTAR APPLICATOR FOR BUILDING BLOCK MASONRY Yuji Tochiori, 57 Johana-machi, Higashitonami-gun, Toyama-ken, Japan Filed May 26, 1967, Ser. No. 641,616 Int. Cl. B28b 7/18, 13/04, 13/02 US. Cl. 25-1 2 Claims ABSTRACT OF THE DISCLOSURE This invention relates to a mortar applicator for building block masonry. It has for a principal object the execution of block masonry in an extremely simplified way, quickly and safely.

The present invention will be described in more detail hereunder the reference to the accompanying drawings showing a mortar applicator embodying the same, in which:

FIGURE 1 shows the general construction, in perspective, of the applicator;

FIGURE 2 is a perspective view showing the applicator in use; and

FIGURE 3 is a perspective view of another similar applicator embodying the invention.

Referring to the drawings, a mortar applicator according to the invention, which is a type of applicator adapted for applying masonry or pointing mortar to the faces of concrete blocks to be jointed for building purpose, comprises a body 1 whose walls are formed into inner frames 2 and an outer frame 3 both having desired configurations and height depending upon the surface contour of the blocks to be jointed and the desired thickness of mortar layer for jointing use, suitable binding means 4 such as steel wires or steel bands which securely combine said frames 2 and 3 together, a handle 5 abutted against the central portion of one side of the body 1, a bottom plate 6 secured to the lower ends of the frames 2 and 3 in agreement with the space thereby defined so as to close the bottom of the body 1, and a sleeve 7 which extends from one side of the bottom plate and fits onto the handle 5 slidably with respect thereto.

With the construction above described, an applicator according to the invention is handled in the following way. In block masonry where a block 8 is to be jointed with another on the surface 9 by application of pointing mortar 10 thereon, the body 1 of the applicator is put into a mortar mixing vessel or bucket to dip up the mortar 10 as if to ladle water. The space bet-ween the inner frames 2 and outer frame 3 on the head of the body 1 can thus be filled with a most suitable amount of mortar. After the mortar in the space between the frames 2 and 3 has been levelled off with removal of any surplus, the body 1 is turned upside down as shown in FIG- URE 2 and placed on the surface 9 of the block 8 to be jointed. Next, the bottom plate 6 turned upside down is drawn to the fore as the sleeve 7 is pulled slidingly back along the handle 5, and then the body 1 is moved upward as a whole. The surface 9 of the block 8 to be jointed can thus have a layer of mortar 10 having the same surface area and a desired thickness.

By the use of this applicator, building blocks can be laid stabilizingly and the masonry can be accomplished most exactly because, instead of the conventional way of dipping up small amounts of mortar and applying them repeatedly on block surface with a pointing trowel, the applicator permits a required amount of mortar to be applied all at once as a layer of uniform. thickness over the entire area of the block surface to be jointed. No skill is required in handling the applicator and any one can easily and promptly accomplish the pointing and masonry work as desired. Moreover, there is no possibility of the mortar spattering and scattering around blocks thus marring the appearance of the jointed blocks. Accordingly, the masonry is finished with extreme fineness without waste of mortar.

The applicator according to the invention has further advantages. For example, because the shape and thickness of the pointing mortar layer are uniformly maintained, the joint strength of the blocks can be enhanced and any intentional omission or saving of pointing mortar through ununiform application by any fraudulent mason or contractor can be precluded.

While the embodiment illustrated in FIGURES 1 and 2, with the inner frames 2 and outer frame 3 in the body formed like a ladder, is designed for horizontal jointing, it is possible to modify the applicator for vertical jointing at both ends of a block 8, as shown in FIGURE 3, by forming inner walls 2' and outer wall 3 of the body 1' in such way that they define therebetween two straight grooves or spaces 11 for filling with mortar.

What is claimed is:

1. A mortar applicator for building block masonry, comprising a body whose walls are formed into at least one hollow inner frame and a hollow outer frame having configurations defining the surface contour of the blocks to be jointed and having heights corresponding to the desired thickness of a mortar layer, binding means fixedly securing said frames together, a handle fixedly secured to the central portion of an outer side of said outer frame, a bottom plate having a configuration corresponding to the surface contour of said blocks and including a sleeve extending from the central portion of one side thereof and slidably fitted onto said handle.

2. A mortar applicator as claimed in claim 1 wherein said binding means comprise steel wires or steel bands.

References Cited UNITED STATES PATENTS 2,664,741 1/ 1954 Nicholson 25.-1

FOREIGN PATENTS 313,135 5/ 1956 Switzerland.

I. SPENCER OVERI-IOLSER, Primary Examiner. R. D. BALDWIN, Assistant Examiner.

US. Cl. X.R. 25-41; 249161; 264--245, 259 

